Quote Originally Posted by Hellix2494 View Post
OK so what are the bottles of water for??
aka "thermal batteries". Here's your thermal dynamics lesson for the day: as water changes temperature much slower than air, adding large quantities of water to an enclosed space, once at the desired temperature, help maintain temperature and reduce drastic temperature changes.

We use "thermal batteries" in our spare garage fridge as it doesn't have much in it, but filled with water, saves us money on electricity as the water helps the fridge maintain temperature. =)